Client does not have permissions to send as this sender

[itsecforu]

Hi!

i make request
mailto://user:[email protected]?to=secops@local

and got error

2025-06-26 08:50:43,601 - INFO - Applying Custom Defaults
2025-06-26 08:50:43,601 - DEBUG - Loaded E-Mail URL: mailto://user:****@smtp.my.local/secops%40local?pgp=no&format=html&overflow=upstream&cto=15&from=user%40smtp.sibur.local
2025-06-26 08:50:43,601 - DEBUG - Connecting to remote SMTP server...
2025-06-26 08:50:43,605 - DEBUG - Applying user credentials...
2025-06-26 08:50:43,734 - DEBUG - SMTP Host: {smtp_host}
2025-06-26 08:50:43,735 - DEBUG - Email From: "changedetection.io" [email protected]
2025-06-26 08:50:43,735 - DEBUG - Email To: [email protected]
2025-06-26 08:50:43,741 - WARNING - Sending email to "[email protected]" failed.
2025-06-26 08:50:43,741 - DEBUG - Socket Exception: (550, b'5.7.60 SMTP; Client does not have permissions to send as this sender')